Gilgamesh - Invisibility Ring

Standing motionless beside him was Tine Chelk, his Master. People under twenty-one years of age were forbidden from entering casinos in this state, and violations carried harsh penalties for the offending casino. Yet no one questioned Tine’s presence. No one so much a looked in her direction.

“Well? No one should be able to see you.”

Maybe because there was no one nearby, or maybe because telepathy simply was not to his liking, Gilgamesh spoke aloud except when sipping his drink.

...Yes, Your Majesty. The blessings of this ring are truly wonderful.

On her finger, Tine wore a ring engraved with the script of ancient Sumer.

“It’s nothing grand enough to call a blessing. Merely a trinket that wards off prying eyes. The mongrel rabble is one thing, but it is not powerful enough to deceive the eyes of a mage or a Servant.”

***

Fate/Strange Fake, Volume 2, Chapter 2